Mokhoa o sebetsang hantle haholoanyane, o baballang matla, o motala, le o nkehang habobebe oa ho pholisa ke tataiso ea tlhahlobo e sa khaotseng ea motho.Haufinyane tjena, sengoloa sa inthaneteng koranteng ea Saense se tlalehile ka leano le lecha le feto-fetohang la sehatsetsi le fumanoeng ke sehlopha sa lipatlisiso se kopaneng sa bo-rasaense ba Machaena le Amerika - "sehatsetsi sa mocheso oa torsional".Sehlopha sa lipatlisiso se fumane hore ho fetola ho sotha ka har'a likhoele ho ka fihlela pholiso.Ka lebaka la ts'ebetso e phahameng ea sehatsetsing, boholo bo fokolang, le ho sebetsa linthong tse fapaneng tse tloaelehileng, "sehatsetsi se sothehileng sa mocheso" se entsoeng ho latela theknoloji ena le sona se fetohile se tšepisang.
Katleho ena e tsoa lipatlisisong tsa tšebelisano-mmoho ea sehlopha sa Moprofesa Liu Zunfeng ho tsoa ho State Key Laboratory ea Medicinal chemistry Biology, School of Pharmacy, le Key Laboratory ea Functional Polymer ea Lekala la Thuto la Nankai University, le sehlopha sa Ray H. Baugman , moprofesa oa Univesithi ea Texas State, Lekala la Dallas, le Yang Shixian, Docent oa Univesithi ea Nankai.
Fokotsa mocheso feela 'me u o sothe
Ho ea ka boitsebiso bo tsoang ho International Refrigeration Research Institute, tšebeliso ea motlakase ea li-air conditioner le lihatsetsi lefatšeng hona joale e etsa karolo ea 20% ea tšebeliso ea motlakase lefatšeng ka bophara.Molao-motheo o sebelisoang haholo oa sehatsetsi sa khatello ea moea matsatsing ana ka kakaretso o na le katleho ea Carnot e ka tlase ho 60%, 'me likhase tse hlahisoang ke mekhoa ea setso ea sehatsetsi li mpefatsa mocheso oa lefatše.Ka tlhokahalo e ntseng e eketseha ea lihatsetsi ke batho, ho hlahloba likhopolo tse ncha tsa sehatsetsing le tharollo ea ho ntlafatsa ts'ebetso ea sehatsetsing, ho fokotsa litšenyehelo, le ho fokotsa boholo ba lisebelisoa tsa sehatsetsi e fetohile mosebetsi o potlakileng.
Rabara ea tlhaho e tla hlahisa mocheso ha e otlolohile, empa mocheso o tla fokotseha ka mor'a ho khutlela morao.Ketsahalo ena e bitsoa "elastic thermal refrigeration", e ileng ea sibolloa qalong ea lekholo la bo19 la lilemo.Leha ho le joalo, ho fihlela phello e ntle ea ho pholisa, rabara e hloka ho otlolloa pele ho makhetlo a 6-7 bolelele ba eona ebe e khutlisoa.Sena se bolela hore sehatsetsi se hloka molumo o moholo.Ho feta moo, katleho ea hona joale ea Carnot ea "sehatsetsi sa mocheso" e batla e le tlaase, hangata e ka ba 32%.
Ka theknoloji ea "torsional cooling", bafuputsi ba ile ba otlolla fibrous rabara elastomer ka makhetlo a mabeli (100% strain), ebe ba lokisa lipheletsong tse peli 'me ba e sotha ho tloha pheletsong e' ngoe ho etsa sebopeho sa Superhelix.Ka mor'a moo, ho ile ha e-ba le ho sotheha ka potlako, 'me mocheso oa likhoele tsa rabara o ile oa theoha ka likhato tse 15,5 tsa Celsius.
Sephetho sena se phahame ho feta phello ea ho pholisa ka ho sebelisa theknoloji ea 'elastic thermal refrigeration': rabara e otlolohileng ka makhetlo a 7 e etsa tumellano e telele 'me e phola ho fihlela ho likhato tse 12.2 tsa Celsius.Leha ho le joalo, haeba rabara e sothehile ’me ea atolosoa, ’me e ntan’o lokolloa ka nako e le ’ngoe, ‘torsional thermal refrigeration’ e ka pholile ho fihlela ho likhato tse 16,4 tsa Celsius.Liu Zunfeng o boletse hore tlas'a phello e ts'oanang ea ho pholisa, bophahamo ba rabara ea "torsional thermal refrigeration" ke karolo ea bobeli ho tse tharo feela ea rabara ea "elastic thermal refrigeration", mme ts'ebetso ea eona ea Carnot e ka fihla ho 67%, e phahametse haholo molao-motheo oa moea. sehatsetsi sa ho hatella.
Mohala oa ho tšoasa litlhapi le mohala oa masela le ona o ka pholile
Bafuputsi ba tsebisitse hore ho ntse ho e-na le sebaka se seholo sa ho ntlafatsa rabara e le "torsional heat refrigeration" lintho tse bonahalang.Ka mohlala, rabara e na le sebopeho se bonolo 'me e hloka li-twist tse ngata ho fihlela pholiso e kholo.Lebelo la eona la ho fetisa mocheso le lieha, 'me litaba tse kang ho sebelisoa khafetsa le ho tšoarella ha thepa li hloka ho nahanoa.Ka hona, ho hlahloba lisebelisoa tse ling tsa "torsional refrigeration" ho fetohile tataiso ea bohlokoa bakeng sa sehlopha sa lipatlisiso.
Ho khahlisang, re fumane hore morero oa 'torsional heat cooling' o sebetsa le ho lithapo tsa ho tšoasa litlhapi le tsa masela.Pejana, batho ba ne ba sa hlokomele hore lisebelisoa tsena tse tloaelehileng li ka sebelisoa ho pholisa, "Liu Zunfeng o itse.
Bafuputsi ba ile ba qala ho sotha likhoele tsena tse thata tsa polymer mme ba theha sebopeho sa helical.Ho otlolla helix ho ka phahamisa mocheso, empa ka mor'a ho khutlisetsa helix, mocheso oa fokotseha.
Teko e fumane hore ho sebelisa theknoloji ea "torsional heat cooling", terata e lohiloeng ea polyethylene e ka hlahisa ho theoha ha mocheso oa likhato tse 5.1 tsa Celsius, ha thepa e otlolohile ka ho toba 'me e lokolloa hoo e batlang e se phetoho ea mocheso e hlokometsoeng.Molao-motheo oa "torsional heat cooling" oa mofuta ona oa polyethylene fiber ke hore nakong ea ts'ebetso ea ho otlolla, ho sotha ka hare ho helix ho fokotseha, ho lebisang liphetohong tsa matla.Liu Zunfeng o boletse hore lisebelisoa tsena tse batlang li le thata li tšoarella nako e telele ho feta likhoele tsa rabara, 'me sekhahla sa ho pholisa se feta sa rabara le ha se otlolohile hakhutšoanyane haholo.
Bafuputsi ba fumane hape hore ho sebelisa theknoloji ea "torsional heat cooling" ho li-alloys tsa memori tsa nickel titanium tse nang le matla a phahameng le ho fetisa mocheso ka potlako ho fella ka ts'ebetso e ntle ea ho pholisa, 'me ho hlokahala feela ho sotha ho fokolang ho finyella phello e kholo ea ho pholisa.
Ka mohlala, ka ho sotha lithapo tse 'nè tsa nickel titanium alloy hammoho, mocheso o phahameng ka ho fetisisa o theoha ka mor'a hore o sa sothoe o ka fihla ho likhato tse 20,8 tsa Celsius,' me mocheso o tloaelehileng oa ho theoha le oona o ka fihla likhato tse 18,2 tsa Celsius.Sena se phahame hanyane ho feta pholileng ea likhato tse 17.0 tsa Celsius tse fihlelletsoeng ho sebelisoa theknoloji ea 'thermal refrigeration'.Potoloho e le 'ngoe ea lihatsetsi e nka metsotsoana e ka bang 30 feela, "Liu Zunfeng o itse.
Theknoloji e ncha e ka sebelisoa ka lihatsetsing nakong e tlang
Ho latela theknoloji ea "torsional heat refrigeration", bafuputsi ba thehile mohlala oa sehatsetsing o ka pholisang metsi a phallang.Ba sebelisitse lithapo tse tharo tsa nickel titanium alloy e le lisebelisoa tse pholileng, tse potolohang 0,87 revolutions per centimeter ho fihlela pholiso ea likhato tse 7,7 tsa Celsius.
Ho sibolloa hona ho sa ntsane ho na le tsela e telele e lokelang ho etsoa pele ho thekiso ea 'lihatsetsi tse sothehileng tsa mocheso', ka menyetla le mathata a mabeli, "ho boletse Ray Bowman.Liu Zunfeng o lumela hore theknoloji e ncha ea sehatsetsi e fumanoeng thutong ena e atolositse lekala le lecha lebaleng la lihatsetsi.E tla fana ka mokhoa o mocha oa ho fokotsa tšebeliso ea matla sebakeng sa sehatsetsing.
Ketsahalo e 'ngoe e khethehileng "sehatsetsing sa mocheso oa torsional" ke hore likarolo tse fapaneng tsa fiber li bontša mocheso o fapaneng, o bakoang ke kabo ea nako le nako ea helix e hlahisoang ke ho sotha fiber ho latela tataiso ea bolelele ba fiber.Bafuputsi ba ile ba koahela bokaholimo ba terata ea nickel titanium alloy ka thermochromism coating ho etsa "torsional cooling" e fetolang 'mala oa fiber.Nakong ea ho sotha le ho sa sothehe, fiber e fetoha 'mala o fetohang.E ka sebelisoa e le mofuta o mocha oa ntho ea kutlo bakeng sa tekanyo e hole ea optical ea fiber twist.Ka mohlala, ka ho shebella liphetoho tsa mebala ka mahlo, motho a ka tseba hore na ke liphetoho tse kae tseo thepa e li entseng hōle, e leng sensor e bonolo haholo."Liu Zunfeng o boletse hore ho latela molao-motheo oa" pholiso ea mocheso oa "torsional", likhoele tse ling li ka sebelisoa bakeng sa masela a bohlale a fetolang 'mala.
Nako ea poso: Jul-13-2023